Filloku
(Published on 8. September 2023, 20:38 by mormagli)
SudokuPad link (via tinyURL)
Penpa+ link (via tinyURL)
Fillomino: Divide the grid into regions of size 1-9. Regions of the same size may not be adjacent. The digit in each cell is the size of the region it belongs to.
Arrows: Cells with an arrow indicate how many region borders there are in the direction of the arrow. There is a border any time two adjacent cells belong to different regions. No region contains more than one arrow.
Filloku: Each column or row has at most one region of a given size (that is, any given digit can only share a row/column with the same digit if they belong to the same region).
For each digit, there are either 0 or X groups of that size, where X is the same for all digits.
Solution code: row 1 (left to right)
Comments
on 4. October 2024, 05:05 by LeiZ123321
Had no idea where to begin at first, but after thinking about it throughout the day, came back and found the fantastic break in quickly :)
on 29. November 2023, 16:25 by Niku
I have spent 3 days on this puzzle until I finally noticed the rule "only one arrow per region".
I really need to be more thorough when reading rules.
Great Puzzle!
-- ack! Sorry you had that experience. I probably haven't helped things by publishing a half dozen subsequent puzzles without that rule. When I set this one I was just starting to explore the ruleset & it felt like it was necessary to making an interesting puzzle.
on 22. September 2023, 15:01 by Piatato
Very impressive construction, although extremely tough for me. Thanks a lot for the penpa link. In general I find it preferable to sudokupad, and particularly so on long non-sudoku puzzles.
on 22. September 2023, 09:30 by MagnusJosefsson
Great puzzle! Very original and different in a good way!
on 21. September 2023, 20:34 by mormagli
added penpa+ link, fixed answer check issue
on 19. September 2023, 19:13 by DarthParadox
Fun puzzle - I really like how the larger regions were constrained! But I think the answer check in the SudokuPad link is wrong - the upper-right region's digits aren't included.
-- weird! I'll look into the answer check
on 9. September 2023, 17:07 by filuta
The ruleset is somewhat crude, but the puzzle is superb, thanks!
>>> if you have any advice on how to improve it, I'd be grateful! I'm thinking of setting another with the 'filloku' rule
............
no, I mean, the problem is just that it feels like a bunch of unrelated rules put together, which makes it hard to remember/apply, but the puzzle outweights it completely ofc
>>> ah, I get it, yes. It is far from elegant :p
>>> the fillomino/Filloku rules can be combined & condensed, but I decided against that for familiarity/readability.
>>>Thanks fir the nice comments & feedback (much appreciated as well)
on 8. September 2023, 23:07 by zzw
Amazing puzzle! Packs a lot of interesting deductions into such a minimal set of clues.
on 8. September 2023, 20:58 by wisty
Fillomino
>>> (－‸ლ)
